One of the possibilities how to utilize your data storage at CESNET is to use FileZilla software, which is running under GNU/Linux. It supports FTPS a SFTP/SCP).

FileZilla (FTPS)

One of the ways how to connect to data storage is to use FileZilla tool which is free to download. FileZilla works in Linux and Windows. In the following section we will show you where you can download FileZilla and how it can be configured so that we can use FTPS a SFTP/SCP) service.

The guide is written for FileZilla version running on Windows 7. Other versions of FileZilla or/and running on another operating system may act or look a little bit different.
Update the 25th of February 2013 - Filezilla from version with new versions of GnuTLS library already behaves correctly under Linux.

The smooth running of FTPS service under Linux is guaranteed only with FileZilla version with GnuTLS version 2.12.0 and less. Other versions are not supported and may cause errors or even unavailability to use FTPS service. The reason of this problem is error in FileZilla. This problem only affects Linux not Window.

1) Download FileZilla.


2) After you install and run FileZilla you will see the following user interface.

3) Go to “Soubor” → “Správce míst…”.

4) Fill in all as in shown at figure below. Into item host write server address.

Futhermore, please provide your username and password.

As a method of encryption select “Vyžadovat explicitní FTP přes TLS”.

Switch to bookmark “Nastavení přenosu” and choose transfer mode “Pasivní”.

Press “Připojit” to connect to your data storage.

5) Once you connect, you can copy files between a window “Místní složka” (represents your computer - local disk) and windows “Vzdálená složka” (represents data storage - remote side)

Data storage uses HSM (Hierarchical Storage Management) architecture. When inactivity occurs then the data is migrated to the lower (slower) layer, which results in causing slower handling of this data, as is required before access to the data they move back to a higher layer. These delays result in the timeout of application.

In order you successfully downloaded the file(s) please set the timeout settings as described below.

Select “Upravit” and then “Nastavení”. In the new window select “Připojení” and fill in the values ​​as is shown below.

FileZilla (SFTP/SCP)

The guide is written for FileZilla version running on Windows XP. Other versions of FileZilla or/and running on another operating system may act or look like a little bit different.

The program is free to download from:

One you installed and run program FileZilla you will see following user interface.

IPv4 addresses of access servers (hosts) for each data center are:

Ostrava ssh.du4.cesnet.cz
Jihlava ssh.du5.cesnet.cz

IPv6 addresses of access servers (hosts) for each data center are:

Ostrava ssh6.du4.cesnet.cz

Services using IPv6 addresses are currently in testing mode.

Fill in the server address and change transfer protocol to “SFTP - SSH File Transport Protocol”. Log in mode select “Normální” and fill in credentials (username and password) and confirm all values with button “Připojit”.

During the login process is very important to check if fingerprint of server is valid. To verify server please use fingerprints below. All servers in one datacenter have the same RSA, DSA and ECDSA key.

Ostrava data center (du4):

RSA, SHA256 (du4) LP7QxtJN257nb4gI8JutEwbrplx+MwdrwBtkhovQl+U
ECDSA, SHA256 (du4) 9YvWE2h459dMcLWcLcD1DsrxTjqqMLD16eiSYXBVX9k
ECDSA, MD5 (du4) 23:f8:17:39:9e:18:4e:dc:bb:4a:b6:04:1c:f5:74:de

Jihlava data center (du5):

RSA, MD5 (du5) 4f:b3:b2:31:aa:30:f1:6f:bc:58:4f:2d:39:e7:85:26
RSA, SHA256 (du5) lIJzpmmnnCQReVAaVom/jkZ1hUNWe/4nnbAl58liJbI
ECDSA, MD5 (du5) d1:72:10:45:5b:3b:ac:c6:ae:e8:32:3b:1c:c3:3e:69
ECDSA, SHA256 (du5) YB7YnmuMktwsFxVe5qdzy2bLU9y+0yowEcpZp82P4nk

If the key does not match, stop connecting to the server and contact us at: support@cesnet.cz

After a successful login we can copy files to the server or from the server - in default layout is left window local system and right window remote system.

In some cases it may occur timeout for open connections. By increasing the timeout in settings you can tell to the client that he will terminate connection after a long time and try reconnect to the server when connection is down.


FileZilla homepage: http://filezilla-project.org

Last modified: 26.10.2016 15:26